816983674 has 16 divisors (see below), whose sum is σ = 1321108488. Its totient is φ = 376679232.

The previous prime is 816983653. The next prime is 816983681. The reversal of 816983674 is 476389618.

It is a happy number.

816983674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 557290449 + 259693225 = 23607^2 + 16115^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10164 + ... + 41680.

Almost surely, 2^816983674 is an apocalyptic number.

816983674 is a deficient number, since it is larger than the sum of its proper divisors (504124814).

816983674 is a wasteful number, since it uses less digits than its factorization.

816983674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32529.

The product of its digits is 1741824, while the sum is 52.

The square root of 816983674 is about 28582.9262672666. The cubic root of 816983674 is about 934.8410890294.

The spelling of 816983674 in words is "eight hundred sixteen million, nine hundred eighty-three thousand, six hundred seventy-four".